1.

If wavelength of maximum intensity of radiations emitted by sun and moon are 0.5xx10^(-6)m and 10^(-4)m respectively, the ratio of their temperature is :

Answer»

`1//200`
`1//100`
`100`
`200`.

Solution :`lamda_(1)T_(1)=lamda_(2)T_(2)`
`(T_(1))/(T_(2))=(lamda_(2))/(lamda_(1))=(10^(-4))/(0*5XX10^(-6))=200`.
Thus correct choice is (d).


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